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Finding the Fourth Proportional to 245,968.80, 368,953.20 and 223,807.20

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Solution

The fourth proportional to 245,968.80, 368,953.20 and 223,807.20 is: 335,710.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,968.80 : 368,953.20 = 223,807.20 : x
  2. Step 2: Convert to fraction form
    245,968.80/368,953.20 = 223,807.20/x
  3. Step 3: Cross multiply
    245,968.80x = 368,953.20 × 223,807.20
  4. Step 4: Simplify right side
    245,968.80x = 82,574,382,623.04
  5. Step 5: Solve for x
    x = 82,574,382,623.04/245,968.80
  6. Step 6: Final answer
    x = 335,710.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.